Class: MathExpression
- Inherits:
-
Object
- Object
- MathExpression
- Defined in:
- lib/Expression/parser.rb,
lib/Expression/getters.rb,
lib/Expression/identifiers.rb
Instance Method Summary collapse
- #eval(input) ⇒ Object
-
#initialize ⇒ MathExpression
constructor
A new instance of MathExpression.
Constructor Details
#initialize ⇒ MathExpression
Returns a new instance of MathExpression.
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# File 'lib/Expression/parser.rb', line 9 def initialize() @input = nil @look = nil end |
Instance Method Details
#eval(input) ⇒ Object
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# File 'lib/Expression/parser.rb', line 14 def eval(input) @input = input init temp = calculate unless @look.nil? raise InvalidInput, "unexpected input: \"#{@look}\"" end temp end |